Sebastian

Sebastian  new_releases

About

Detail

Sr. Java Software Engineer
Buenos Aires, Argentina
Contact Sebastian regarding: 
Flexible work
Starting at USD40/hour

Timeline

work
Job
school
Education

Résumé

Jobs verified_user 0% verified
  • Metron Aviation
    Sr Java Software Engineer public Remote experience
    Metron Aviation
    Jan 2023 - Mar 2026 (3 years 3 months)
    Consulting for Metron Aviation through Elite IT (Argentina), contributing to the development of a large-scale air traffic management platform used in major airports. Worked with a remote engineering team in the United States, delivering high-quality backend features and system integrations across ~30 interconnected services.
    Built and enhanced Java backend services, integrating components through REST APIs, file-based workflows, and message queues.
    Improved system reliability and performance; supported production environments and resolved complex issues.
    Collaborated closely with US-based teams under Agile methodologies.
    Participated in code reviews, CI/CD automation, and technical documentation.
  • Directa24
    Sr. Java Software Engineer public Remote experience
    Directa24
    Mar 2021 - Jul 2022 (1 year 5 months)
    Integration and maintaining of several payment processors around the globe including Mexico, Japan, United States, India and others, using REST and SOAP services. Design and develop for payment services and
    internal applications. JUnit testing referent. Mentoring Jr. developers.
  • Wenance
    Sr. Java Software Engineer public Remote experience
    Wenance
    Aug 2020 - Mar 2021 (8 months)
    Project: Compass Core / Spain
    Microservices reactive implementation. Junit version and tests migration
  • Overactive
    Sr. Java Software Engineer
    Overactive
    Mar 2019 - Aug 2020 (1 year 6 months)
    Client: XPO Logistics
    Project: Photo Viewer / Allowable Loads
    REST services implementation. Code review, merge and deploy. Research and improvement of cross-project architecture design, mentoring. Module referent.
    Project: Pickup Request
    Architecture design and project setup. REST services implementation. Mentoring
  • MAvha
    Sr. Java Software Engineer
    MAvha
    Oct 2018 - Mar 2019 (6 months)
    Core system migration REST architecture. 100% remote distributed team.
    Service and UI development in different projects.
  • Oracle - Cablevision
    Senior Java Development Environment Consultant - Advanced
    Oracle - Cablevision
    Mar 2017 - Jun 2018 (1 year 4 months)
    Client: Oracle - Cablevision
    Project: Commercial website - Fase II - Convergencia
    Analysis of user requirements and user stories. Development of new user
    stories from scratch, implementation and translation of screen mockups into actual functionality, frontend and backend implementation.
    Implementation of ATG Commerce - Endeca pipeline via creation of new
    cartridges for screen modularity and maximum user components reusability.
    Research and implementation of site login via SAML protocol and OAuth.
    Interaction with IDP configuration team.
    Research of ATG Commerce embedded shopping cart, customization and implementation based of the business complex logic (products, bundles,
    promotions, etc.)
  • Advanced Software
    Senior Java Developer
    Advanced Software
    Apr 2016 - Mar 2017 (1 year)
    Project: Caja Notarial
    Information exchange via meetings with the final user. Improvement support for UI and functionallities.
    UI creation, bussinness logic implementation (fullstack).
    Support and bug fixing.
    Technologies: Struts 2, Hibernate, Jquery, JSP, Oracle DB, Tomcat 7.
  • Advanced Software
    Sr. Java Developer
    Advanced Software
    Jun 2014 - Aug 2018 (4 years 3 months)
  • Monsanto Company
    Senior Java Developer- Advanced Software Account
    Monsanto Company
    Jun 2014 - Dec 2016 (2 years 7 months)
    In charge of Paraguay an Brazil Barter region, direct communication with the user, information retrieving and support. Main management headquarter were
    located in United States.
    Technical responsibility of Turns module of Argentina region.
    Task estimation, new functionalities development and bug fixing,
    communication with business analysts and testing teams.
    Backend, frontend and web services development.
    Branch administration and merges using SVN and GIT.
    Build and application deploy in different environments.
    Interaction with teams in different locations; functional analyst, testing,
    users, data base team, Integration Services (Web services) and Web Team
    (deploys).
    Team code review an
  • Indra
    Sr. Software Engineer
    Indra
    Feb 2014 - May 2014 (4 months)
    In charge of all Java section of the energy administration system, working
    directly with a team located in Spain.
    - Bugs analysis and resolutions in administration Applet (based on JGra).
    - Analysis for securing sistem via SSL on iPlanet 4.1, finally using
    authentication certificates.
    - Technologies: iPlanet 4.1, Solaris 8, Applets, JGra, Oracle database.
  • Globant
    JAVA Developer
    Globant
    Jun 2011 - May 2013 (2 years)
    Argentina

    Client: Globant
    Project: Glow
    Tasks: User Stories analisys for new fuctionalities, modules and application
    improving.
    War creation and application deployment in QC environment.
    Migration of both development and QC environments to Java 1.6 and Tomcat
    6.3.
    Team code reviewing
    Technologies: Agile, Spring, HTML, JSP, JavaScript, JQuery, Maven, Eclipse,
    Tomcat, Hibernate, Postgres, Code Review.


    Globant Labs
    Project: Globiculum
    Tasks: Start up of the project, configuration with Maven dependecies.
    Research of LinkedIn API to retrieve users information.
    Technologies: Katari, Spring, HTML, Maven, Eclipse, Postgres.
  • Advanced Software
    SSr. JAVA Developer
    Advanced Software
    May 2010 - Jun 2011 (1 year 2 months)
    Project: Suscripciones - Clarin 365 - Fidelization program for newspaper
    readers
    Tasks: Development of new functionalities, improvement of code, bug fixing and post-production support.
    Direct interaction with testing and analyst groups, testing support.
    Use of SCRUM daily meetings and tasks estimations time.
    Technologies: ExtJS, JSON, EJB, Jasper Reports, IReport, JPA, Hibernate,
    MVC Framework (owned by AGEA), SVN, JBoss AS, MySQL, Eclipse IDE,
    JIRA,.
  • Huenei Consultora Informatica
    SSr. JAVA Developer
    Huenei Consultora Informatica
    Feb 2010 - Apr 2010 (3 months)
    Asofarma Proyect, implementing an Health Professional Agency system in Uruguay, Venezuela and Chile. The technologies used are Spring, EJB 3.0,
    ZK, Hibernate and Postgres under Ubuntu 9.04 Operative System.
    Tasks: Bug fixing and evolutive development interacting with Functional
    Analyst and testing team members. In charge of tag creation and versioning for client implementation.
  • IT Resources S.A
    SSr. JAVA Developer
    IT Resources S.A
    May 2009 - Jan 2010 (9 months)
    May 2009 - January 2010 (9 months)


    ~~~~~~


    - Working in the Banco de Chile project, migrating, updating and improving its
    Home Banking by using Java, Struts, EJB and WS technologies, running in a Tomcat and/or JBoss server and WAS 5.1 as Application Server.
    - Improving application performance by using PMD tool. Checking source code
    for better readability, memory efficiency and system stability.


    Client: Neoris Argentina
    Project: Working in the Banco de Chile project, migrating, updating and improving its Home Banking by using Java, Struts, EJB and WS technologies,
    running in a Tomcat and/or JBoss server and WAS 5.1 as Application Server.
    Improving application per
  • Synapsis
    Jr. JAVA Developer
    Synapsis
    Jun 2008 - Jan 2009 (8 months)
    June 2008 - January 2009 (8 months)
    Proyect:Synergia 4J - Utilities Comercial System. Customer Serice Module.
    Client: Codensa S.A. (Colombia).
    Tasks: Use Case Design and Implementation. System Implementation and maintaining support, evolutive and corrective maintaining. Functional
    specifications revision.
    Technologies: Java, Kendari Framework (owned by the Company - based on Hibernate and Spring). XML.
    Database: Oracle.
    Application Server: Tomcat.
  • U
    LAMP Developer
    United States Client
    Mar 2005 - Feb 2006 (1 year)
    Working as a freelance independent developer in a LAMP environment
    (Linux, Apache Tomcat, MySQL and PHP). The web project was the development of a web site, which spidered and indexed other websites,
    centralizing a huge amount of information. The interaction was directly with the client via chat and teleconference.
    - The web site was developed from the beginning, obtaining client
    requirements and designing web site name, layout, logo and graphics,
    database architecture and PHP and Java Script code, besides acquiring
    domain name, hosting and establishing its configuration.


    ~~~~~~


    - Search Engine Optimization: optimizing metatags and keywords, maximizing
    web site visits, sea
  • Paradigma
    Jr ABAP Programmer
    Paradigma
    Jan 2005 - Feb 2005 (2 months)
    Analisis and development of a pallet control module for SAP system of VITAL
    S.A. organization, project finished in two months.
  • Banco Central de la Repúblia Argentina
    Customer Service
    Banco Central de la Repúblia Argentina
    Aug 2004 - Dec 2004 (5 months)
    Internship - Support and research on first level duties to all users in the organization (about 2000). Telephone and personal support in any kind of
    issues, from hardware, Windows configurations (networking and local), office
    packages and intern developer tools.
Education verified_user 0% verified
  • UADE
    Informatics Analyst
    UADE
    Mar 2002 - Jul 2004 (2 years 5 months)
  • UADE
    Bachelor of Informatics
    UADE
    Mar 2002 - Oct 2006 (4 years 8 months)